Generated by: lqns, version 6.0 Copyright the Real-Time and Distributed Systems Group, Department of Systems and Computer Engineering Carleton University, Ottawa, Ontario, Canada. K1S 5B6 Invoked as: lqns ecomm2011.xlqn Input: ecomm2011.xlqn Comment: ... Variables: $browse_rate = 0.915241, $dem_order = 25.5922, $nusers = 287, $order_rate = 0.0847587, $req_browse_read = 16.6164, $userThink = 319.132 Convergence test value: 0.00666298 Number of iterations: 9 Solver: Elapsed: 0:00:00.000 Submodels: 6 MVA Core(): 54 MVA Step(): 587 MVA Wait(): 49366 Processor identifiers and scheduling algorithms: Processor Name Type Copies Scheduling PUsers Inf 1 DELAY PImgDisk Uni 1 FCFS PWebServer Uni 1 PS PStore Mult(3) 1 PS PDBs Uni 1 PS PFileServer Uni 1 PS Task information: Task Name Type Copies Processor Name Pri Entry List TUsers Ref(287) 1 PUsers 0 EUserBeh TWebServer Mult(150) 1 PWebServer 0 EAccess TImgDisk Uni 1 PImgDisk 0 ERdImg TStoreApp Mult(90) 1 PStore 0 EBrowse, EOrder TCart Mult(10) 1 PStore 0 EBuy TInvDB Mult(7) 1 PDBs 0 EInvRd, EInvUpd TCustDB Uni 1 PDBs 0 ECustRd, ECustUpd TFS Mult(10) 1 PFileServer 0 EFRd, EFWrite Entry execution demands: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 319.132 TWebServer EAccess 2 TImgDisk ERdImg 1 TStoreApp EBrowse 15 EOrder 25.5922 TCart EBuy 30 TInvDB EInvRd 2 EInvUpd 1 10 TCustDB ECustRd 3 ECustUpd 1 5 TFS EFRd 3 EFWrite 1 3 Mean number of rendezvous from entry to entry: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 1 TWebServer EAccess ERdImg 15 EAccess EBrowse 0.915241 EAccess EOrder 0.0847587 TStoreApp EBrowse EInvRd 16.6164 EOrder EBuy 1 TCart EBuy EInvRd 3 EBuy EInvUpd 1 TInvDB EInvRd EFRd 1.8 EInvUpd EFRd 1 0 EInvUpd EFWrite 0 2.5 TCustDB ECustRd EFRd 4 ECustUpd EFRd 1 0 ECustUpd EFWrite 0 2 Mean number of non-blocking sends from entry to entry: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 1 Phase type flags: All phases are stochastic. Squared coefficient of variation of execution segments: All executable segments are exponential. Open arrival rates per entry: All open arrival rates are 0. Type 1 throughput bounds: Task Name Entry Name Throughput TUsers EUserBeh 0.0328787 TWebServer EAccess 0.0237512 TImgDisk ERdImg 0.359622 TStoreApp EBrowse 0.0129032 EOrder 0.0409863 TCart EBuy 0.00283749 TInvDB EInvRd 0.168387 EInvUpd 0.121955 TCustDB ECustRd 0.00258012 ECustUpd 0.00283745 TFS EFRd 0.331344 EFWrite 0.276366 Mean delay for a rendezvous: Task Name Source Entry Target Entry Phase 1 Phase 2 TUsers EUserBeh EAccess 9057.01 TWebServer EAccess ERdImg 0.280875 EAccess EBrowse 4082.88 EAccess EOrder 4082.92 TStoreApp EBrowse EInvRd 348.505 EOrder EBuy 0 TCart EBuy EInvRd 456.822 EBuy EInvUpd 456.822 TInvDB EInvRd EFRd 1.59906 EInvUpd EFRd 1.59906 0 EInvUpd EFWrite 0 0.871193 TCustDB ECustRd EFRd 0.819843 ECustUpd EFRd 0.819843 0 ECustUpd EFWrite 0 2.24383 Mean delay for a send-no-reply request: Task Name Source Entry Target Entry Phase 1 Phase 2 TCart EBuy ECustUpd 48.3952 Service times: Task Name Entry Name Phase 1 Phase 2 TUsers EUserBeh 19564.3 TWebServer EAccess 10188.4 TImgDisk ERdImg 1 TStoreApp EBrowse 6460.36 EOrder 2022.4 TCart EBuy 1997.22 TInvDB EInvRd 39.4011 EInvUpd 21.7289 32.2007 TCustDB ECustRd 81.0178 ECustUpd 21.0577 24.7104 TFS EFRd 18.6846 EFWrite 6.22821 18.6846 Service time variance (per phase) and squared coefficient of variation (over all phases): Task Name Entry Name Phase 1 Phase 2 coeff of var **2 TUsers EUserBeh 1.0936e+009 2.85712 TWebServer EAccess 2.58384e+008 2.48917 TImgDisk ERdImg 1 1 TStoreApp EBrowse 4.63004e+007 1.10936 EOrder 1.24198e+007 3.03653 TCart EBuy 4.34065e+006 1.08818 TInvDB EInvRd 2755.36 1.77485 EInvUpd 1140.69 1210.18 0.808304 TCustDB ECustRd 9108.32 1.38764 ECustUpd 1078.98 811.674 0.902579 TFS EFRd 255.007 0.730439 EFWrite 28.3342 255.007 0.456524 Throughputs and utilizations per phase: Task Name Entry Name Throughput Phase 1 Phase 2 Total TUsers EUserBeh 0.0146694 286.997 286.997 TWebServer EAccess 0.0146694 149.458 149.458 TImgDisk ERdImg 0.220047 0.220047 0.220047 TStoreApp EBrowse 0.0134264 86.7395 86.7395 EOrder 0.00124339 2.51464 2.51464 Total: 0.0146698 89.2541 89.2541 TCart EBuy 0.00124339 2.48334 2.48334 TInvDB EInvRd 0.226831 8.93738 8.93738 EInvUpd 0.00124339 0.0270176 0.0400382 0.0670558 Total: 0.228074 8.96439 0.0400382 9.00443 TCustDB ECustRd 0 0 0 ECustUpd 0.00124339 0.0261831 0.0307248 0.0569079 Total: 0.00124339 0.0261831 0.0307248 0.0569079 TFS EFRd 0.327326 6.11597 6.11597 EFWrite 0.00496267 0.0309085 0.0927256 0.123634 Total: 0.332289 6.14688 0.0927256 6.2396 Utilization and waiting per phase for processor: PUsers Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TUsers 0 287 EUserBeh 4.68148 0 Utilization and waiting per phase for processor: PImgDisk Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TImgDisk 0 1 ERdImg 0.220047 0 Utilization and waiting per phase for processor: PWebServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TWebServer 0 150 EAccess 0.0293388 0.0603069 Utilization and waiting per phase for processor: PStore Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TStoreApp 0 90 EBrowse 0.201396 0 EOrder 0.0318211 0 Task Total: 0.233217 TCart 0 10 EBuy 0.0373018 0 Processor Total: 0.270519 Utilization and waiting per phase for processor: PDBs Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TInvDB 0 7 EInvRd 0.453662 0.890449 EInvUpd 0.0136773 0.445225 4.45225 Task Total: 0.467339 TCustDB 0 1 ECustRd 0 0 ECustUpd 0.00746037 0.553272 2.76636 Task Total: 0.00746037 Processor Total: 0.474799 Utilization and waiting per phase for processor: PFileServer Task Name Pri n Entry Name Utilization Phase 1 Phase 2 TFS 0 10 EFRd 0.981979 15.6846 EFWrite 0.0198507 5.22821 15.6846 Task Total: 1.00183